script to print out sections of `.adoc` files, assuming they all start with `1_something.adoc`, `2_something_else.adoc`, etc.

get_sections.py

import glob
import re
import os

def count_equal(line):
    res = 0
    for i in range(10):
        if line[i] == "=":
            res += 1
        else:
            break
    return res


def parse_chapter(chapt_num, chapter):
    section_depth = {0: chapt_num}
    # read section of the chapter
    first_line = True
    is_comment = False
    is_formula = False
    for line in chapter:
        # skip first line
        if first_line:
            first_line = False
            continue
        # skip comments
        if is_comment:
            if line[:4] == "////":
                is_comment = False
            else:
                continue
        else:
            if line[:4] == "////":
                is_comment = True
                continue
        # skip formulas
        if is_formula:
            if line[:4] == "****":
                is_formula = False
            else:
                continue
        else:
            if line[:4] == "****":
                is_formula = True
                continue
        # retrieve information from titles only (e.g. ==== TITLE)
        depth = count_equal(line)
        if depth > 0:
            name = line.rsplit("=", 1)[1].rstrip("\n")
            if name == "":
                continue
#            print("section detected", line, name)
            section_depth = print_section_number(section_depth, depth-1, name)

def print_section_number(section_depth, depth, name):
#    print("add", depth, section_depth)
    # add in dictionary
    if depth in section_depth:
        section_depth[depth] += 1
    else:
        section_depth[depth] = 1
    section_depth = clear_depth(section_depth, depth)
    # format
    fmt = ""
#    print("debug", depth-1, section_depth)
    for i in range(depth+1):
#        print("access", i)
        fmt += str(section_depth[i]) + "."
    print("-" * depth + fmt + name)
    return section_depth

def clear_depth(section_depth, depth):
    while True:
        depth += 1
        if depth in section_depth:
            section_depth[depth] = 0
        else:
            break
    return section_depth


def main():
    # read chapter files sorted by their number
    filenames = glob.glob("./manuscript/*_*.adoc")
    filenames = sorted(filenames, key=lambda line: int(os.path.basename(line).split("_", 1)[0]))
    for filename in filenames:
        with open(filename, 'r') as f:
            name = os.path.basename(filename)
            print(name)
            chapt_num = int(name.split("_", 1)[0])
            parse_chapter(chapt_num-1, f)

if __name__=="__main__":
    main()